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Astrid Tempestini

Past and present connectivity between crustaceans’ population in the Arctic ocean.

Astrid Tempestini
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I am fascinated by genetic and more precisely by evolution. I began to investigate the organisation of genetic diversity during my master thesis on tropical trees. For my PhD, I have abandoned trees for crustaceans because they are amazing creatures.

France Dufresne

Biology, University of Québec in Rimouski

5/2011 to 5/2015

Marine Biodiversity, MB-04: Biodiversity and Gene Flow in Crustaceans

The Quaternary climatic variations greatly affected the distribution and the genetic exchange between marine populations. Investigating how species have survived to these changes will be useful to understand how species will behave in the global warming context. In the Arctic, the crustaceans are the main food resources for fishes and whales but neither their population structure nor their gene flows have been studied. Describing the population structure and estimating the level of gene flow among these marine populations is important to gain a better understanding of the dispersal capabilities of the arctic crustaceans between the three Canadian oceans.

The specific project/thesis aims are:

• To identify arctic crustaceans with the barcoding technique.

• To estimate the genetic exchange among the three Canadian oceans.

• To describe the organisation of genetic diveristy of population of arctic crustaceans.

This project is directly related to the marine biodiversity project because in the Arctic ocean the marine biodiversity is underestimated and barcoding help to identify potentially new species.

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